<!-- Make screen blurbehind-->
<!-- Remove title-bar and make
     application full screen ( with size controllers and close button)
-->
<html window-frame="extended" window-blurbehind="dark">
<head>
    <style>
        html{
            background: rgba(0, 100, 100, 0.1);
        }
        body{
            padding-left: 30%;
            vertical-align: center;
            color: #ffffff;
        }
    </style>
</head>
  
    <body>
        <br><br>
        <h3> 1. Add button from Go </h3>
        <h3> 2. On button click open new window </h3>
        <div #button-spot></div>
    </body>
</html>